Malicious PDF — malware analysis report

Static analysis result for SHA-256 44c92d81c8157ec3…

MALICIOUS

PDF

40.6 KB Created: 2020-08-12 15:02:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ff53ad89f0dd8196e475b1c98292a9a SHA-1: 9760cf542715ff467ecc72386a06c36b538ac5b4 SHA-256: 44c92d81c8157ec32e19c0276c8da5cc50a0a430d7e78fcb9630f54b461c967e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.ru/wb?keyword=lunation%20cycle%20dane%20rudhyar%20pdf', is flagged as a known malicious redirector. The document body itself is heavily corrupted and unreadable, but the presence of numerous links, including the malicious one, strongly suggests an attempt to redirect users to harmful content or manipulate search engine results.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/wb?keyword=lunation%20cycle%20dane%20rudhyar%20pdf
    • http://files.rmisuw.org/uploads/1/3/1/6/131606346/dajugize.pdf
    • http://files.lawnbowlsnovascotia.com/uploads/1/3/0/9/130969012/vokapebazepeg.pdf
    • http://files.solalpine.com/uploads/1/3/1/4/131438348/kotises-mabakusokidej.pdf
    • http://files.andywalkerart.com/uploads/1/3/0/9/130970008/2051058.pdf
    • http://lixonu.kpservices.co.uk/uploads/1/3/2/6/132680903/3d060201e0a25.pdf
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/56323165649.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdf
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/tinoxipomivoti.pdf
    • https://cdn.shopify.com/s/files/1/0433/3522/1403/files/achenbach_child_behavior_checklist.pdf
    • https://cdn.shopify.com/s/files/1/0437/7922/7810/files/89507077999.pdf
    • https://cdn.shopify.com/s/files/1/0431/7554/2950/files/furupisire.pdf
    • https://cdn.shopify.com/s/files/1/0431/5847/0810/files/pinidijata.pdf
    • https://cdn.shopify.com/s/files/1/0429/0212/6751/files/67728886739.pdf
    • https://cdn.shopify.com/s/files/1/0437/7391/9393/files/manorama_year_book_bangla.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/beyond_good_and_evil_kaufmann.pdf
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/78560269784.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/94034476258.pdf
    • https://cdn.shopify.com/s/files/1/0433/8089/9991/files/meduvoxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8355/4206/files/55672748260.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062a3.bin
e3665cdeea9594fc643fa91eeaa77bb0c9605f607f5a8be1dee82ca171e3cb28
pdf-font-stream PDF embedded font (sfnt) at offset 0x62A3 5108 bytes
font_01_sfnt_off00007407.bin
e7b4c3a94fb4c2d0e6b1d6a221896479769d97b397c096d82f8b4a2966143bb1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7407 9728 bytes